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A&P Exam 4
acid base balance, digestive, reproduction
95
Anatomy
Undergraduate 2
04/11/2009

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Term
Liter amount of ICF and ECF
Definition
ICF: 25L, Plasma 3L, ISF 12L
Term
Electrolytes
Definition
Mg+, Na+, K+, Ca+, Cl-, HCO3-, PO4-, SO4-
Term
Functions of Water
Definition
regulates osmolarity, skin tugor, lubrication, shock absorption, transport, pressure, chemical reactions
Term
Control of Thirst (Intake of water)
Definition
MAP and osmolarity, integrates at hypothalamus, sensation of thirst. Increase ADH
Term
Control of ADH. Output of Water.
Definition
osmolarity, integrates in hypothalamus, increases or decreases ADH, effects kidney (water retention and urine output)
Term
Functions of Sodium
Definition
Maintains extracellular fluid, neuro-muscular control, acid base balance,, chemical reactant
Term
Control of intake of Sodium
Definition
NONE. pressure changes intake. only control is the output in kidneys.
Term
Control of Sodium at kidneys (output)
Definition
MAP changes, integrates at kidneys, efferent changes levels of renin-angiotensin-aldosterone, effects kidneys, sodium and water retention and urine output. OR increased MAP, atrial pressure responses, increase atriopeptin to slow down distal convoluted tubule, decrease sodium and water retntion and increase urine
Term
Functions of Potassium
Definition
extracellular determines neuromuscular excitability, chemical reactant, major cation of ICF
Term
Intracellular concentration of K+
Definition
if it is smaller outside, increases diffusion out of cell and is more negative and further from threshold.
Term
Control of ECF concentration of K+ with aldosterone
Definition
aderenal cortex receptors, integrates at adrenal cortex, efferent increases or decreases amount of aldosterone, effects distal convoluted tubule to speed up pump. Picks K+ over Na+ for pump control.
Term
Competition of H+ and K+ at distal convoluted tubule
Definition
picks H+ over K+! Levels of ECF K+ will increase. During acidosis, H+ enters cells and K+ leaves to compensate. Opposite during alkalosis.
Term
Functions of Calcium
Definition
Intracellular: excitation increasing contraction. Stores 99% in bones around the bone cells for strength. 1% is ECF, 50% is protein bound, 50% is ionized for clotting and decreasing neuromuscular excitability
Term
Ionized Ca++
Definition
clotting, decreases neuromuscular excitability. Lines Na+ pores and makes them smaller.
Term
Control of Ca++ in ECF by parathyroid hormone and activated vitamin D
Definition
receptors on parathyroid gland, integrates on gland and produces parathyroid hormone, effects: GI by absorbing Ca from food, BONE CaPo4 mobilizes it from the bone to reestablish blood levels, KIDNEY releases more phosphorus and indirectly increases Ca levels in blood
Term
Calcitionin and estrogen
Definition
block and slows down mobilization of parathyroid hormone on bones
Term
Extracellular H+ effects on Ca+
Definition
increases Ca++ (acidosis) and decreases excitability. if low levels (alkalosis), decreases Ca++ and increases excitability.
Term
Significance of H+
Definition
most important, affects activity of all enzymes in body, stabilizes cell membranes DECREASING neuromuscular activity. increases ecf K, increases ionized Ca
Term
Buffering Method
Definition
weak base buffers strong acid to make weak acid used to buffer strong base to make it a weak base
Term
Functions of hemoglobin
Definition
carries oxygen, co2, can shift saturation curve, buffer H+
Term
Extracellular H+ is determined by...
Definition
acid/base, 1/20
Term
NaHCO3
Definition
sodium bicarbonate filtered at glomerulus and must reabsorb to prevent metabolic acidosis
Term
Replacement of NaHCO3
Definition
buffer strong acid, raise H+ slightly, eliminate CO2 at lungs and replace NaHCO3 at kidneys
Term
Amino Acids in food and energy chain
Definition
free fatty acids and glycerol to monosaccarides (add water)
Term
Proteins in food and energy chain
Definition
triglycerides to carbs (remove water)
Term
Structure of tract
Definition
mucosa (epithelium-tight junctions/secretes, lamina-connective tissue, muscularis mucosa-muscle creates waves), submucosa (connective tissue with blood supply), muscularis, serosa (double layer, pulls everything together)
Term
Controls of secretion and motility
Definition
intramural plexus (submucosal, myenteric), ANS (vagus), hormonal
Term
Salivary Glands
Definition
parotid glands (mumps), submandibular, sublingual
Term
Salivary Amylase
Definition
enzymes that break down carbs
Term
Control of Saliva
Definition
7th cranial nerve
Term
Control of Swallowing
Definition
9th cranial nerve, vagus, hypoglossal
Term
Faciform ligament
Definition
attaches liver to ventral messentery. GI held to liver held to ventral messentery.
Term
Intraperitoneal organs
Definition
organs are inside parietoneal cavity. stomach, liver, gallbladder, SI, colon (sigmoid and transverse)
Term
Retroperitoneal organs
Definition
behind peritoneal cavity. aorta, vena cava, duodenum, pancreas, adrenal gland, ureters, colon (ascending and descending)
Term
Regions of Stomach
Definition
cardiac (top), fundus (where esophagus enters), body with rugae (folds), antrum (gateway into SI), pyloric canal and sphincter (where sphincter controls emptying)
Term
Glandular Cells in the Mucosa of the Stomach
Definition
neck (water and musin), parietal (HCl, intrinsic factor), chief (pepsinogen), enterendocrine (gastrin, controls secretion)
Term
Pepsinogen
Definition
digests proteins
Term
Intrinsic Factor
Definition
absorption of vit b12 in small intestine
Term
Control of Cephalic Phase
Definition
CNS ONLY. Efferent: Vagus, increased s&m.
Term
Control of Gastric Phase
Definition
INTRAMURAL: distention, proteins, caffeine, alcohol. receptors: stretch, chem. Intramural plexus, local nerve fibers. increased. CNS: same except CNS, vagus, increased. ENDOCRINE: same except antrum of stomach, gastrin in blood, increased.
Term
Intestinal Phase Control
Definition
INTRAMURAL: distention, acid chyme, carb & fats. Receptors: stretch, chem. Intramural plexus, local nerve fibers, decreased. ENDOCRINE: same except duodenum, efferent pathway: secretin, CCK, GIP, decreased.
Term
Absorption into intestinal capillaries
Definition
monosaccarides (glucose, galactose, fructose), amino acids.
Term
Lacteals
Definition
fats travel in to thoracic and right lymphatic ducts to subclavian veins
Term
Bile acids
Definition
recirculated at end of ilium to portal to liver to digest meal more.
Term
Wall of Large Intestine
Definition
taeniae coli (longitudinal) allows for pouches (haustra)
Term
Defecation
Definition
spinal reflex with vagus nerve. voluntary from sacral plexus.
Term
Endocrine Cells in Pancreas
Definition
isles of Langerhans. alpha: glucagon. beta: insulin
Term
Exocrine cells in the pancreas
Definition
acini. sodium bicarb (buffers gastric acid), pancreatic enzymes (amylase-CHO, lipase-fats, proteolytic enzymes-protein)
Term
Duct of Wursung
Definition
runs through pancreas
Term
Control of Pancreatic Secretion (no motility)
Definition
CNS: distention, acid chyme, carbs and fats. stretch, chem receptors in duodenum. Vagus, increased. ENDOCRINE: same except duodenum and secretin CCK and GIP
Term
Control of Intestinal Secretion AND motility
Definition
INTRAMURAL: distention, acid chyme, carb&fat. stretch, chem in duodenum. Integrates duodenum,, intramural plexus, increased. CNS: same except CNS and vagus. ENDOCRINE: same except integrates duodenum, secretin, CCK and GIP.
Term
Blood supply in Liver
Definition
hepatic artery (oxygen) and portal vein (nutrients) going in, hepatic vein going out
Term
Functional unit in Liver
Definition
lobule. hepatic cells organized around central vein. Kupffer cells are phagocytes, central vein leads to hepatic vein to inferior vena cava.
Term
Biliary Duct system
Definition
biliary cancliculi join to form hepatic ducts to duodenum, gall bladder concentrates and stores bile, common bile duct combines gall bladder and hepatic ducts, sphincter of oddi is door to duodenum, opens during meals.
Term
Functions of the Liver
Definition
metabolism of carbs, fats and proteins, stores fat soluble vitamins, removes harmful substances, secretes bile
Term
Control of Bile
Definition
endocrine, chemical receptors for fat in duodenum, integrates there, efferent: CCK in blood, contracts gall bladder and relaxes sphincter of oddi
Term
Metabolism of Carbs
Definition
salivary amylase, pancreatic amylase, amylase from intestinal glands, brush border disaccharidases (sucrase to sucrose to fructose, maltase to maltose to 2 glucoses, lactase to lactose to glucose and galactose)
Term
Metabolism of Proteins
Definition
denatured by HCl, gastric pepsin, pancreatic trypsin, proteolytic enzymes from intestinal glands, brush border aminopeptidases
Term
Metabolism of Fats
Definition
water hydrolyzes breakdown, bile acids and phospholipids (emulsification), pancreatic lipase, micelles form (bile acids, phospholipids, free fatty acids, glycerol)
Term
Input to Hypothalamus controlling secretion of other endocrine glands
Definition
monitor parameter, input from brain, negative feedback from peripheral hormones, diurnal cycles (pineal gland- daylight)
Term
Anterior Pituitary vs. Posterior
Definition
ant: GH, prolactin, estrogen, cortisone, thyroxin, testosterone. post: ADH and oxytocin
Term
Glucose Options
Definition
Glycogenesis (store as glycogen), synthesis (into AA), glycolysis (break down to CO2, H2O and energy)
Term
Amino Acid Options
Definition
FFA Synthesis (make fat, cannot go backwards), synthesis (proteins), oxidative deamination (Krebs cycle, CO2 H2O and energy)
Term
Free Fatty Acids Options
Definition
Lipogenesis (store as tryglycerides) or beta oxidation (krebs cycle, CO2 H2O and energy)
Term
Aims of organic metabolism
Definition
control of metabolism (absorptive and post absorptive rates), control of temperature, metabolism in stress
Term
Insulin in absorptive state
Definition
presence of glucose, integrates in pancreas, targets all cells except brain & RBC (primarily LIVER, skeletal muscle, fat cells), increased plasma glucose increases entrance into cells, decreases plasma glucose levels, increased glycolysis and glycogenesis. Increased AA = increased AA into cells, decreased plasma AA, protein synthesis and gluconeogenesis. lipogenesis.
Term
Growth Hormone in Absorptive State
Definition
increased AA, integrates in ant. pituitary and hypothalamus, targets most cells of body, NO GLUCOSE EFFECT, increased AA = increased AA into cells, decreased plasma AA, protein synthesis. NO EFFECT ON FAT
Term
Glucagon in Post Absorptive State
Definition
decreased plasma and AA levels, integrates in pancreatic alpha cells, effect is glucagon in liver, targets liver and adipose cells, Glucose: glycogenolysis, gluconeogenesis, stops insulin. NO PROTEIN. Lipid: lipolysis.
Term
Epinephrine in Post Absorptive State
Definition
decrease plasma glucose and AA levels, integrates in hypothalamus, targets liver adipose and skeletal muscle, glucose: glycogenolysis, gluconeogensis, stops insulin. NO PROTEIN. Lipid: lipolysis.
Term
Cortisol in Post Absorptive State
Definition
stress, decreased glucose levels. integrates in hypothalamus (CRH), ant. pituitary (ACTH), adrenal cortex (Cortisone), targets liver adipose and skeletal muscle, glucose: gluconeogenesis, stops insulin. Protein: breakdown. Lipid: lipolysis
Term
Growth Hormone in Post Absorptive State
Definition
decreased glucose levels, integrates in hypothalamus and ant. pituitary, efferent is pituitary vein, targets most cells of body, glucose: gluconeogenesis, stops insulin. NO PROTEIN. lipid: lipolysis.
Term
Thyroid Gland Hormones
Definition
calcitonin, t3 (active), t4
Term
Total metabolic rate
Definition
basal rate (reflex, heart, breathing) plus voluntary control
Term
Control of Thyroxin
Definition
cold, stress, sleep, fasting. integrates at hypothalamus (TRH), ant. pituitary (TSH), thyroid gland (t3 and t4). general circulation, targets most cells in body, DECREASES EFFICIENCY OF ENERGY TRANSFER. increases calorie use, increases oxygen consumption, increases heat production
Term
Control of body temperature
Definition
thermal receptors (peripheral- skin mucous membranes, or central-hypothalamus), integrates in hypothalamus, decreases body temp causes increased heat production (muscle tone, shivering, thyroxin and epi) and decreased heat loss (increased sympathetic, behavioral changes)
Term
Immediate Stress response
Definition
acute stress, sense receptors, integrates in hypothalamus, efferent is sympathetic neurons and epi in blood, effects heart, blood vessels, bronchioles and pupils
Term
Adrenal Gland
Definition
medulla- AA fixed membrane receptors. epi, norepi, dopamine. cortex-steroid mobile receptors. cortisone, aldosterone, testosterone, estrogen and progesterone.
Term
Long term response to stress
Definition
integrates hypothalamus (CRH), ant. pit. ACTH, adrenal cortex cortisone in blood. effects permissive for norepi, increased gluconeogenesis and lipolysis, anti anabolic, anti inflammatory and immune response.
Term
Mitosis
Definition
one replication of each of the 46 chromosomes, one division gives each daughter cell identical chromosomes, each daughter cell is a diploid, EXACTLY THE SAME
Term
Meiosis
Definition
replication of each of the 46 chromosomes, first meiotic division (replicated line up in 23 pairs, each daughter cell is a haploid with 23 replicated chromosomes, not identical), second meiotic division (23 replicated chromosomes separate, still a haploid with 23 chromosomes)
Term
Spermatogenesis
Definition
primary is after mitosis for 2 diploid then secondary is after meiosis 1 so there are 4 sperm.
Term
Genetic Variability
Definition
6-8 million possibilities. crossing over between chromosomes BEFORE first meiotic division, random separation of chromosomes in first meiotic division
Term
Oogenesis
Definition
first meiotic division produces 1 secondary oocyte (1 polar body), second meiotic division one zygote (if sperm enters in and is fertilized) and one polar body (not usable)
Term
Sex determination
Definition
sperm determines. male produces 2x and 2y, women produce 2x. internal organs determined by genetics, external genitalia are effects of testosterone.
Term
Testes
Definition
seminiferous tubules. tightly coiled tubes form epididymus. immature spermatogonia undergo mitosis and then meiosis, sustenacular cells (Sertoli) support sperm and stimulate spermatogenesis. interstitial endocinocytes (leydig cells) produce testosterone
Term
Erectile Tissue in Penis
Definition
corpus cavernous outside and corpus spongiosum surrounding urethra. end is calls glans.
Term
Hormone regulation in male
Definition
hypothalamus GnRH at puberty, ant. pituitary FSH affects sustentacular (sertoli) cells of testes and spermatogenesis and inhibin. LH (luteinizing hormone stimulates interstitial cells of testes) and produce testosterone.
Term
Effects of testosterone
Definition
male external genitalia, male 2nd sex characteristics, male behavior patterns, indirect spermatogenesis via sustenacular cells, anabolic effects on protein synthesis, closure of epiphysis growth plates, negative feedback on LH
Term
Ovaries
Definition
follicle and corpus leteum. FOLLICLE: estrogen production by thecal cells, oogenesis creates ovum, ovulation releases ovum. CORPUS: estrogen and progesterone, scarred area unless fertilization, corpus albicans degenerates, pitted texture of ovary.
Term
Layers of Uterus
Definition
serosa, myomentrium (muscle), endometrium (stratum basilis where stem cells are, don't lose. stratum functionalis: lose during menstruation)
Term
Menstrual Cycle
Definition
1. no fertilization 2. Follicular phase 3. LH Peak: ovulation 4. Luteal or secretory phase 5. Degeneration of corpus luteum: restart cycle
Term
Menstrual Cycle
Definition
formation of corpus albicans from corpus luteum, decreased estrogen and progesterone, increases FSH and LH, menstruation
Term
Follicular phase
Definition
follicle development, oogenesis, estrogen production, positive feedback of estrogen on FSH and LH, proliferation of endometrial lining
Term
Luteal or secretory Phase
Definition
formation of corpus luteum, increased estrogen and progesterone, negative feedback on FSH and LH, secretion by endometrium
Term
Spinal Reflexes during Sex
Definition
erection: para. secretion: sym. and ejaculation: sym. and somatic fibers
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